Inventor: Van Rosmalen, Nicolaas Arnoldus Maria
Inventor: Van Rosmalen, Nicolaas Arnoldus Maria
Inventor: Van Rosmalen, Nicolaas Arnoldus Maria
Inventor: Van Rosmalen, Nicolaas Arnoldus Maria
Inventor: Van Rosmalen, Nicolaas Arnoldus Maria
Inventor: Van Rosmalen, Nicolaas Arnoldus Maria